Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – With preliminary diverse conversion
Patent
1991-11-18
1992-12-15
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...
With preliminary diverse conversion
585 10, 585 12, 585300, 585510, C07C 200, C07C 204
Patent
active
051719088
ABSTRACT:
The invention is directed to method of making a thermally and oxidatively stable lubricating oil having a high viscosity index and a low pour point by the thermal polymerization of 1-olefins containing 8 to 10 carbon atoms, the preferred 1-olefins are 1-decanes. The polymerization is conducted at temperatures ranging from 280.degree. C. to 350.degree. C. and low pressures, of less than about 280 psig, in a reactor which is free of catalytic material. Thereafter, the polyalphaolefin is hydrotreated over a nickel catalyst, preferably nickel on Kieselguhr. In an improved process the polyalphaolefin is separated from a low molecular weight product by distillation. The low molecular product contains unreacted 1-olefins which are recycled to the thermal polymerization zone to produce more of the lubricant base stock. The remaining lower molecular weight olefinic materials which include mixed olefins, paraffins, cracked olefins and olefin dimers are routed to a polymerization zone to make a second lubricant base stock.
REFERENCES:
patent: 2000964 (1935-05-01), Lenher
patent: 2111831 (1930-03-01), Batchelder
patent: 2500166 (1950-03-01), Seger et al.
patent: 2706211 (1955-04-01), Clark
patent: 3883417 (1975-05-01), Woo et al.
patent: 4124650 (1978-11-01), Olavesen et al.
F. M. Seger et al, "Noncatalytic Polymerization of Olefins to Lubricating Oils", Industrial and Engineering Chemistry 2446 to 2452 (1950).
McFarlane Anthony
McKillop Alexander J.
Mobil Oil Corporation
Sinnott Jessica M.
Speciale Charles J.
LandOfFree
Synthetic polyolefin lubricant oil does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synthetic polyolefin lubricant oil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic polyolefin lubricant oil will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2094563